| Subject | English | Spanish |
| comp., MS | firewall traversal | cruce seguro de firewall (A technology that provides secure pathways through a firewall and enables multiple data streams to pass thru the firewall on the same port (e.g., audio and video data on the same port)) |
| comp., MS | pre-order traversal | recorrido en preorden (The act of recursively traversing a non-empty binary tree by visiting the root node first, then the left subtree, then the right subtree) |